Test automation in software development offers numerous benefits. It enhances efficiency by executing tests quickly and repeatedly, ensuring consistent results. Automated tests improve accuracy by eliminating human error, increasing test coverage, and enabling the execution of complex test cases. They also facilitate continuous integration and delivery, allowing developers to identify and address issues promptly. Automation reduces manual testing efforts, saving time and costs in the long run. Additionally, it supports scalability, accommodating growing codebases and frequent updates, and enhances overall software quality by providing reliable and repeatable testing processes.